Auxiliary carbureting system



Nov. 9,1925. 1,605,907

J. A. ALBERT AUXILIARY CARBURETING SYSTEM Filed June 1924 2 Sheets-Sheet 1 J. A. ALBERT AUXILIARY CARBURETTNG SYSTEM Nov. 9 1926. 1,605,907

Filed June 1924 2 Sneets-Sheet .2

Patented Nov. 9, 1926.

wire. stares JOSEPH A. ALBERT, or SBRINGFIELD, rmssecrrusnrrs.

AUXILIARY CARBURETING SYSTEM.

Application f led J e 21,

My invention relates to the supplementing or augmenting of the gasing in the carbureting system of an internal combustion engine and particularly an automobile engine. It has been proposed heretofore to utilize the exhaust gas from the engine both for the purpose of salvaging partly burned gases and partly to take advantage of the heat thereof in initial vaporization in the carbureter.

It has been furthermore proposed to heat the fuel prior to carbureting and it has been found that this can be advantageously done by utilizing the heat of the exhaust or some part of the exhaust pipe or engine which is maintained hot by the products of combustion. There has been considerable difficulty in utilizing the exhaust gases and I think that this is largely due to the force of the exhaust combined with its intermittent character which at low speed is so apparent and which even at high speed amounts to distinct pulsation.

My invention contemplates the offsetting of this difficulty and the provision of an apparatus which will permit the use of these gases and at the same time give the desired preheating to the fuel. In the form of the invention shown herein I have provided a simple device which is shown as an attachment but which obviously may be built in or installed with the motor in the first place. In the drawings illustrative of this form and throughout the specification descriptive thereof I have employed like reference characters to indicate corresponding parts. In the drawings Fig. 1 is a side elevation of a motor equipped with my invention.

Fig. 2 is an enlarged view thereof.

Fig. 3 is a .section on the line 38 of Fig. 2.

Fig. 4 is a section on the line 4-4, Fig. 3, and

Figs. 5, 6 and 7 are details of the check valve.

Referring to these drawings I have indicated an exhaust pipe 2 leading from a motor 1. The carburetor which may be of any type is indicated at 3. My device may be conveniently cut in on the exhaust pipe at any convenient point but preferably so that it will come more or less into alignment with the air intake of the carburetor 3. The device comprises a casing 4 having a reduced end 41 adapted to be clamped or 1924. Serial No. 721,430,v

otherwise attached to the exhaust 2 as at 42. The casing 4 is provided with a cylindrical arm or extension 45 which is attached to the air inlet of the carburetor by any suitable connection as at 46 to securea tight and convenient joint. Within. this tubular extension is provided a check valve 47 having a stem 47 guided in a spider 48. The forward face of the spider 4-8 is rabbeted as indicated at 50 to provide an annular seat for the check valve 47. At the rear end of the check valve stem 47 is a collar 47 between which and the rear face of the spider is a spring 49. The valve is thus normally held against its seat 50 but the spring is a very light spring and readily yields to either pressure or suction;

The lower part of the casing 4 tapers somewhat parallel to its cylindrical member and through this tapered portion the gasolene line 51 is passed. The gasolene pipe therefore is directly exposed to the hot gases of the exhaust within the chamber 4 and also receives that warming that comes from the stored up heat in the walls of the chamber itself. IVhen so installed under ordinaryoperating conditions it is only necessary to adjust the carburetor by reducing the amount of its normal gasolene consumption.

I provide also on the tubular extension a rotatable sleeve 55 provided with ports 56 which may be turned to register with corresponding openings in the cylindrical portion or turned to close such openings. This constitutes a control of the air supply and further assists in the adjustment of the carbureting system.

I also connect my cylindrical extension 45 by a tubing 57 to some convenient point in the crank case as at 58. The tubing 57 enters the extension 45 preferably between the valve 47 and the air control 55 and enters the crank case above the oil level so as to draw off any gas or fuel. vapors which may collect in the crank case.

Various modifications in the form and construction of my invention may be made and all without departing from the spirit of my invention if within the limits of the appended claims.

What I therefore claim and desire to se cure by Letters Patent is:

1. In combination with the exhaust pipe and carburetor of an internal combustion engine, a generally Y-shaped casing constituting a heating chamber connecting at one end with said exhaust pipe and beyond said connectlon bifurcated to provide an extcnslon connecting with the air lnlet of the carburetor and an extension, through which the fuel pipe to the fuel inlet of the carburetor is carried, and a check Valve in said air inlet extension.

2. In combination with the exhaust pipe and carburetor of an internal combustion engine, a generally Y-shaped casing constituting a heatin chamber connecting atone end with said ex aust pipe and beyond said connection bifurcated to provide an extension connecting with" the air inlet of the carburetor and an extension, through which the fuel pipe to U the .fuel inlet of the carburetor is carried, and a check valve in said air inlet extension, said extension having an air port therein in advance of said check valve, and

a rotatable sleeve having a port adapted to 20 be registered with said first-named port.

Intestnn'ony whereof I affi x my signature.

Josnrn ALBERT; 

